Singapore Deposit Insurance Corporation - Deposits Insurance Scheme?

If you want a guarantee on your remaining funds, you'll have to put them in other banks.

The limit for SDIC is indeed $75K in aggregate per person per bank, so you still have a few more banks to go before you really hit the maximum. This assumes you will want to keep these monies fairly liquid.

I'm trying to understand what you mean by 'protect' as well as the time frame you are looking at, if it is a guarantee you are looking for, then only the SDIC will provide that for you. If you are able to relax the liquidity requirements, consider FDs, SSBs and money market funds for the short term (1 - 3 years)

I must say, that is a lot of cash. All full banks and finance companies in Singapore (unless otherwise exempted by MAS) are required to be members of the DI Scheme, so you can consider the other banks as well.

Alternatively, if you have no need for such high liquidity, T-bills and SSB can also be alternatives, with T-bills having shorter maturity. If the money is from an unexpeted event, inheritance or lottery, it will be good to consult a financial planner for advice.